50558040 has 192 divisors, whose sum is σ = 183146400. Its totient is φ = 12400128.

The previous prime is 50558033. The next prime is 50558077. The reversal of 50558040 is 4085505.

It is a super-2 number, since 2×50558040² = 5112230817283200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 50557995 and 50558013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182382 + ... + 182658.

Almost surely, 2^50558040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50558040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91573200).

50558040 is an abundant number, since it is smaller than the sum of its proper divisors (132588360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50558040 is a wasteful number, since it uses less digits than its factorization.

50558040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 50558040 is about 7110.4177092489. The cubic root of 50558040 is about 369.7686403630.

The spelling of 50558040 in words is "fifty million, five hundred fifty-eight thousand, forty".